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Mathematics 8 Online
OpenStudy (anonymous):

Let f(x) = -4x + 7 and g(x) = 10x - 6. Find f(g(x)).

OpenStudy (campbell_st):

well substitute g(x) for x in f(x) so f(x) = -4(10x - 6) + 7 now distribute ans simplify

OpenStudy (anonymous):

-40x-17

jimthompson5910 (jim_thompson5910):

you should get -40x + 24 + 7 NOT -40x - 24 + 7

jimthompson5910 (jim_thompson5910):

since -4 times -6 = +24

OpenStudy (campbell_st):

@jim_thompson5910 has the correction to your solution

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